Security readout for executives and security teams
Plain-English summary
CVE-2021-33884 affects B. Braun SpaceCom2 before 012U000062. A remote, unauthenticated attacker with network access to the device webpage API could upload arbitrary files into /tmp, potentially overwriting important files. The public record rates it medium severity, but medical-device environments should treat exposure seriously.
Executive priority
Prioritize remediation for hospitals or clinical networks using affected SpaceCom2 devices. This is not sourced as actively exploited, but unauthenticated network access and potential file overwrite on medical infrastructure create meaningful operational risk.
Technical view
The issue is unrestricted upload of dangerous file types through the SpaceCom2 webpage API. Sources state arbitrary files can be written to /tmp and critical files may be overwritten. The CVSS 3.1 score is 6.5 with network attack vector, low complexity, no privileges, and no user interaction.
Likely exposure
Exposure is limited to environments running B. Braun SpaceCom2 versions before 012U000062 where attackers can reach the device webpage API over the network. The source bundle does not identify other affected products or CPEs.
Exploitation context
The source bundle does not show CISA KEV listing or active exploitation. McAfee ATR publicly disclosed vulnerabilities in B. Braun infusion pump technology, but the provided evidence does not establish exploitation in the wild for this CVE.
Researcher notes
The affected-product metadata in the bundle is incomplete, but the CVE description identifies B. Braun SpaceCom2 before 012U000062. Avoid expanding scope beyond that. Focus validation on version state, API exposure, and evidence of unexpected upload or file overwrite activity.
Mitigation direction
- Identify all B. Braun SpaceCom2 deployments and record firmware versions.
- Upgrade SpaceCom2 to 012U000062 or later where vendor guidance supports it.
- Restrict network access to the SpaceCom2 webpage API.
- Monitor vendor advisories for device-specific remediation instructions.
- Review clinical network segmentation around infusion pump infrastructure.
Validation and detection
- Confirm SpaceCom2 version is not prior to 012U000062.
- Verify the webpage API is reachable only from approved management networks.
- Review device and network logs for unexpected upload activity.
- Check /tmp and operational file integrity using vendor-supported methods.
- Confirm compensating controls are documented for devices awaiting upgrade.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
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CVE-2021-33884 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AC:L/AV:N/A:N/C:L/I:L/PR:N/S:U/UI:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AC:L/AV:N/A:N/C:L/I:L/PR:N/S:U/UI:N3.92.5Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.5MediumVector: CVSS:3.1/AC:L/AV:N/A:N/C:L/I:L/PR:N/S:U/UI:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.bbraunusa.com/en.htmCVE reference · x_refsource_MISC
- https://www.mcafee.com/blogs/enterprise/mcafee-enterprise-atr/mcafee-enterprise-atr-uncovers-vulnerabilities-in-globally-used-b-braun-infusion-pump/CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.